Table of Contents
Description
This Keto Zucchini Casserole is creamy, cheesy, low-carb, and easy to make — a healthy, sugar-free dinner the whole family will love!
Introduction
If you’re looking for a comforting, cheesy side dish that won’t knock you out of ketosis, this Keto Zucchini Casserole is exactly what you need. It’s rich, creamy, and loaded with flavor while staying completely low-carb, keto-friendly, and sugar-free. Even better, it’s one of those easy healthy recipes that feels indulgent without the guilt.
Zucchini is a staple in many keto kitchens because it’s affordable, versatile, and naturally low in carbs. In this casserole, tender zucchini slices are baked in a creamy cheese mixture until golden and bubbly, creating a dish that feels like classic comfort food. It’s perfect for busy weeknights, family dinners, potlucks, or even meal prep.
This recipe has become a favorite in my home because it satisfies everyone at the table — even those who aren’t following a keto lifestyle. Whether you’re new to keto or just want a healthier side dish that doesn’t sacrifice flavor, this Keto Zucchini Casserole is guaranteed to impress 🥘💚
Recipe Stat Sheet (Quick Overview)
| Category | Details |
|---|---|
| Recipe Name | Keto Zucchini Casserole |
| Cuisine | American |
| Diet Type | Keto, Low-Carb, Gluten-Free |
| Prep Time | 15 minutes |
| Cook Time | 35 minutes |
| Total Time | 50 minutes |
| Servings | 6 |
| Difficulty Level | Easy |
| Best For | Dinner, Side Dish, Meal Prep |
Recipe Equipment
To make this casserole smoothly, you’ll need:
- Large skillet
- Mixing bowl
- Measuring cups and spoons
- 9×13-inch baking dish
- Spatula
- Knife and cutting board
- Oven
Ingredients
- 4 medium zucchini, sliced
- 1 tablespoon olive oil
- ½ teaspoon salt
- ½ teaspoon black pepper
- 1 teaspoon garlic powder
- 1 cup shredded cheddar cheese
- ½ cup shredded mozzarella cheese
- ½ cup grated Parmesan cheese
- ½ cup sour cream (full-fat, sugar-free)
- 2 large eggs
- ¼ cup chopped onion
- 1 tablespoon butter
Why these ingredients work:
Zucchini provides a tender base, while full-fat dairy adds creaminess and keeps the dish keto-friendly. Eggs help bind everything together for a perfectly set casserole.
Ingredient Notes
- Zucchini: Choose firm zucchini with no soft spots to avoid excess moisture.
- Cheese: Full-fat cheese gives the best flavor and texture.
- Sour Cream: Greek yogurt can be used if it’s low-carb.
- Onion: Adds flavor, but you can reduce or omit for fewer carbs.
Step-by-Step Instructions
- Prepare the zucchini.
Wash and slice the zucchini into thin rounds. Lightly salt them and let sit for 10 minutes, then pat dry to remove excess moisture. - Sauté for flavor.
Heat olive oil and butter in a skillet over medium heat. Add zucchini and chopped onion, cooking until just tender and lightly golden. - Mix the creamy base.
In a bowl, whisk eggs, sour cream, garlic powder, salt, and pepper until smooth and creamy. - Add the cheese.
Stir in cheddar, mozzarella, and half of the Parmesan cheese for a rich, cheesy mixture. - Assemble the casserole.
Spread zucchini evenly in a greased baking dish. Pour the cheese mixture over the top and gently mix. - Top and bake.
Sprinkle remaining Parmesan cheese on top. Bake at 375°F for 30–35 minutes until bubbly and golden. - Rest and serve.
Let the casserole cool for 5–10 minutes before serving for the best texture.
Pro Tips & Variations
For extra flavor, add crispy bacon bits or cooked ground sausage to the casserole. You can also mix in spinach or mushrooms for added veggies. If you like a crunchy topping, sprinkle crushed pork rinds on top before baking. This casserole stores well, making it a great meal-prep option. Adjust seasoning to taste and don’t skip draining the zucchini — it keeps the dish from becoming watery.
Serving Suggestions
Serve Keto Zucchini Casserole:
- As a side dish with grilled chicken or steak
- Alongside baked salmon
- As a vegetarian keto main dish
- With a fresh low-carb salad
It’s versatile enough for weeknight dinners or holiday meals.
Storage Information
- Refrigerator: Store leftovers in an airtight container for up to 4 days.
- Reheating: Reheat in the oven or microwave until warmed through.
- Freezing: Can be frozen for up to 2 months, though texture may soften slightly.
Nutrition Facts (Per Serving – Estimated)
- Calories: 290
- Net Carbs: 5g
- Fat: 23g
- Protein: 14g
This Keto Zucchini Casserole is the perfect example of how healthy, low-carb eating can still feel comforting and satisfying. It’s creamy, cheesy, and incredibly easy to make — a recipe you’ll come back to again and again.
Give it a try, share it with friends, and let me know in the comments how you made it your own 🥒🧀